// ***************************************************************************
// ***************************************************************************
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
//
// In this HDL repository, there are many different and unique modules, consisting
// of various HDL (Verilog or VHDL) components. The individual modules are
// developed independently, and may be accompanied by separate and unique license
// terms.
//
// The user should read each of these license terms, and understand the
// freedoms and responsabilities that he or she has by using this source/core.
//
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
// A PARTICULAR PURPOSE.
//
// Redistribution and use of source or resulting binaries, with or without modification
// of this file, are permitted under one of the following two license terms:
//
//   1. The GNU General Public License version 2 as published by the
//      Free Software Foundation, which can be found in the top level directory
//      of this repository (LICENSE_GPL2), and also online at:
//      <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
//
// OR
//
//   2. An ADI specific BSD license, which can be found in the top level directory
//      of this repository (LICENSE_ADIBSD), and also on-line at:
//      https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
//      This will allow to generate bit files and not release the source code,
//      as long as it attaches to an ADI device.
//
// ***************************************************************************
// ***************************************************************************

`timescale 1ns/100ps

module axi_ad9144 #(

  parameter   ID = 0,
  parameter   QUAD_OR_DUAL_N = 1,
  parameter   DAC_DATAPATH_DISABLE = 0) (

  // jesd interface
  // tx_clk is (line-rate/40)

  input                   tx_clk,
  output                  tx_valid,
  output      [(128*QUAD_OR_DUAL_N)+127:0]  tx_data,
  input                   tx_ready,

  // dma interface

  output                  dac_clk,
  output                  dac_valid_0,
  output                  dac_enable_0,
  input       [63:0]      dac_ddata_0,
  output                  dac_valid_1,
  output                  dac_enable_1,
  input       [63:0]      dac_ddata_1,
  output                  dac_valid_2,
  output                  dac_enable_2,
  input       [63:0]      dac_ddata_2,
  output                  dac_valid_3,
  output                  dac_enable_3,
  input       [63:0]      dac_ddata_3,
  input                   dac_dovf,
  input                   dac_dunf,

  // axi interface

  input                   s_axi_aclk,
  input                   s_axi_aresetn,
  input                   s_axi_awvalid,
  input       [ 15:0]     s_axi_awaddr,
  input       [ 2:0]      s_axi_awprot,
  output                  s_axi_awready,
  input                   s_axi_wvalid,
  input       [ 31:0]     s_axi_wdata,
  input       [ 3:0]      s_axi_wstrb,
  output                  s_axi_wready,
  output                  s_axi_bvalid,
  output      [ 1:0]      s_axi_bresp,
  input                   s_axi_bready,
  input                   s_axi_arvalid,
  input       [ 15:0]     s_axi_araddr,
  input       [ 2:0]      s_axi_arprot,
  output                  s_axi_arready,
  output                  s_axi_rvalid,
  output      [ 31:0]     s_axi_rdata,
  output      [ 1:0]      s_axi_rresp,
  input                   s_axi_rready);


  // internal clocks and resets

  wire                                    dac_rst;
  wire                                    up_clk;
  wire                                    up_rstn;

  // internal signals

  wire    [255:0]                         tx_data_s;
  wire    [ 15:0]                         dac_data_0_0_s;
  wire    [ 15:0]                         dac_data_0_1_s;
  wire    [ 15:0]                         dac_data_0_2_s;
  wire    [ 15:0]                         dac_data_0_3_s;
  wire    [ 15:0]                         dac_data_1_0_s;
  wire    [ 15:0]                         dac_data_1_1_s;
  wire    [ 15:0]                         dac_data_1_2_s;
  wire    [ 15:0]                         dac_data_1_3_s;
  wire    [ 15:0]                         dac_data_2_0_s;
  wire    [ 15:0]                         dac_data_2_1_s;
  wire    [ 15:0]                         dac_data_2_2_s;
  wire    [ 15:0]                         dac_data_2_3_s;
  wire    [ 15:0]                         dac_data_3_0_s;
  wire    [ 15:0]                         dac_data_3_1_s;
  wire    [ 15:0]                         dac_data_3_2_s;
  wire    [ 15:0]                         dac_data_3_3_s;
  wire                                    up_wreq_s;
  wire    [ 13:0]                         up_waddr_s;
  wire    [ 31:0]                         up_wdata_s;
  wire                                    up_wack_s;
  wire                                    up_rreq_s;
  wire    [ 13:0]                         up_raddr_s;
  wire    [ 31:0]                         up_rdata_s;
  wire                                    up_rack_s;

  // signal name changes

  assign up_clk = s_axi_aclk;
  assign up_rstn = s_axi_aresetn;

  // dual/quad cores

  assign tx_valid = 1'b1;
  assign tx_data = tx_data_s[(128*QUAD_OR_DUAL_N)+127:0];

  // device interface

  axi_ad9144_if i_if (
    .tx_clk (tx_clk),
    .tx_data (tx_data_s),
    .dac_clk (dac_clk),
    .dac_rst (dac_rst),
    .dac_data_0_0 (dac_data_0_0_s),
    .dac_data_0_1 (dac_data_0_1_s),
    .dac_data_0_2 (dac_data_0_2_s),
    .dac_data_0_3 (dac_data_0_3_s),
    .dac_data_1_0 (dac_data_1_0_s),
    .dac_data_1_1 (dac_data_1_1_s),
    .dac_data_1_2 (dac_data_1_2_s),
    .dac_data_1_3 (dac_data_1_3_s),
    .dac_data_2_0 (dac_data_2_0_s),
    .dac_data_2_1 (dac_data_2_1_s),
    .dac_data_2_2 (dac_data_2_2_s),
    .dac_data_2_3 (dac_data_2_3_s),
    .dac_data_3_0 (dac_data_3_0_s),
    .dac_data_3_1 (dac_data_3_1_s),
    .dac_data_3_2 (dac_data_3_2_s),
    .dac_data_3_3 (dac_data_3_3_s));

  // core

  axi_ad9144_core #(.ID(ID), .DATAPATH_DISABLE(DAC_DATAPATH_DISABLE)) i_core (
    .dac_clk (dac_clk),
    .dac_rst (dac_rst),
    .dac_data_0_0 (dac_data_0_0_s),
    .dac_data_0_1 (dac_data_0_1_s),
    .dac_data_0_2 (dac_data_0_2_s),
    .dac_data_0_3 (dac_data_0_3_s),
    .dac_data_1_0 (dac_data_1_0_s),
    .dac_data_1_1 (dac_data_1_1_s),
    .dac_data_1_2 (dac_data_1_2_s),
    .dac_data_1_3 (dac_data_1_3_s),
    .dac_data_2_0 (dac_data_2_0_s),
    .dac_data_2_1 (dac_data_2_1_s),
    .dac_data_2_2 (dac_data_2_2_s),
    .dac_data_2_3 (dac_data_2_3_s),
    .dac_data_3_0 (dac_data_3_0_s),
    .dac_data_3_1 (dac_data_3_1_s),
    .dac_data_3_2 (dac_data_3_2_s),
    .dac_data_3_3 (dac_data_3_3_s),
    .dac_valid_0 (dac_valid_0),
    .dac_enable_0 (dac_enable_0),
    .dac_ddata_0 (dac_ddata_0),
    .dac_valid_1 (dac_valid_1),
    .dac_enable_1 (dac_enable_1),
    .dac_ddata_1 (dac_ddata_1),
    .dac_valid_2 (dac_valid_2),
    .dac_enable_2 (dac_enable_2),
    .dac_ddata_2 (dac_ddata_2),
    .dac_valid_3 (dac_valid_3),
    .dac_enable_3 (dac_enable_3),
    .dac_ddata_3 (dac_ddata_3),
    .dac_dovf (dac_dovf),
    .dac_dunf (dac_dunf),
    .up_rstn (up_rstn),
    .up_clk (up_clk),
    .up_wreq (up_wreq_s),
    .up_waddr (up_waddr_s),
    .up_wdata (up_wdata_s),
    .up_wack (up_wack_s),
    .up_rreq (up_rreq_s),
    .up_raddr (up_raddr_s),
    .up_rdata (up_rdata_s),
    .up_rack (up_rack_s));

  // up bus interface

  up_axi i_up_axi (
    .up_rstn (up_rstn),
    .up_clk (up_clk),
    .up_axi_awvalid (s_axi_awvalid),
    .up_axi_awaddr (s_axi_awaddr),
    .up_axi_awready (s_axi_awready),
    .up_axi_wvalid (s_axi_wvalid),
    .up_axi_wdata (s_axi_wdata),
    .up_axi_wstrb (s_axi_wstrb),
    .up_axi_wready (s_axi_wready),
    .up_axi_bvalid (s_axi_bvalid),
    .up_axi_bresp (s_axi_bresp),
    .up_axi_bready (s_axi_bready),
    .up_axi_arvalid (s_axi_arvalid),
    .up_axi_araddr (s_axi_araddr),
    .up_axi_arready (s_axi_arready),
    .up_axi_rvalid (s_axi_rvalid),
    .up_axi_rresp (s_axi_rresp),
    .up_axi_rdata (s_axi_rdata),
    .up_axi_rready (s_axi_rready),
    .up_wreq (up_wreq_s),
    .up_waddr (up_waddr_s),
    .up_wdata (up_wdata_s),
    .up_wack (up_wack_s),
    .up_rreq (up_rreq_s),
    .up_raddr (up_raddr_s),
    .up_rdata (up_rdata_s),
    .up_rack (up_rack_s));

endmodule

// ***************************************************************************
// ***************************************************************************
